
ModsJava
Mixed Stacks
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on ModrinthMixed Stacks
We've all been here before. You have 2 of basically the same item (e.g. charcoal and coal), but they take up 2 different inventory slots? Introducing... Mixed Stacks!

How They Work
- Grab an item from your inventory.
- Right-click on another item.
- If it allows them to combine, they'll combine into one inventory slot!
{
"tagKeywords": [
"logs",
"wool",
"planks",
"stone_bricks",
"concrete",
"glass",
"carpets",
"terracotta",
"beds",
"banners",
"candles",
"shulker_boxes",
"stairs",
"slabs",
"walls",
"fences",
"fence_gates",
"doors",
"trapdoors",
"buttons",
"pressure_plates",
"signs",
"boats",
"flowers",
"saplings",
"leaves",
"crops",
"seeds",
"vegetables",
"fruits",
"ores",
"raw_materials",
"ingots",
"dusts",
"plates",
"gears"
],
"compatibleItemPairs": [
[
"minecraft:beef",
"minecraft:porkchop"
],
[
"minecraft:cooked_beef",
"minecraft:cooked_porkchop"
],
[
"minecraft:chicken",
"minecraft:rabbit"
],
[
"minecraft:cooked_chicken",
"minecraft:cooked_rabbit"
],
[
"minecraft:sand",
"minecraft:red_sand"
],
[
"minecraft:sandstone",
"minecraft:red_sandstone"
],
[
"minecraft:dirt",
"minecraft:coarse_dirt"
],
[
"minecraft:brown_mushroom",
"minecraft:red_mushroom"
],
[
"minecraft:crimson_fungus",
"minecraft:warped_fungus"
],
[
"ae2:certus_quartz_crystal",
"ae2:charged_certus_quartz_crystal"
]
]
}
You can add specific item pairs via compatibleItemPairs, or specify tags that can combine using tagKeywords.
If you want items from your favorite mod added, you can do so here.
Also on CurseForge, if that's your thing.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
File checked by MCModsHub
- Ships as mixed-stacks-1.0.0-beta.1+1.21.jar — drop this file into the mods folder
- Download size: 36 KB
- Download link checked 21 Oct 2026 — working
These come from our own check of the pack file, not from the source page.